Desert plants have in their epidermis
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The epidermal cells of roots commonly bear long hair-like parts that greatly increase the total absorptive surface area, aiding in water absorption.
Stomata are necessary for exchanging gases with the atmosphere and for transpiration, which is the loss of water in the form of water vapor.
The stomata are enclosed by two kidney-shaped cells called guard cells.
The small pores in the epidermis of a leaf are called stomata. They facilitate gas exchange and transpiration, which is the loss of water vapor from the plant.